Home / 920,260.02-1,380,223.82-321,392.45

Finding the Fourth Proportional to 920,260.02, 1,380,223.82 and 321,392.45

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Solution

The fourth proportional to 920,260.02, 1,380,223.82 and 321,392.45 is: 482,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,260.02 : 1,380,223.82 = 321,392.45 : x
  2. Step 2: Convert to fraction form
    920,260.02/1,380,223.82 = 321,392.45/x
  3. Step 3: Cross multiply
    920,260.02x = 1,380,223.82 × 321,392.45
  4. Step 4: Simplify right side
    920,260.02x = 443,593,519,312.20
  5. Step 5: Solve for x
    x = 443,593,519,312.20/920,260.02
  6. Step 6: Final answer
    x = 482,030.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.